Spray nozzle outlet



Sept. .1, 1931. L, G,' CHASE 1,821,542

SPRAY NOZZLE OUTLET Filed May 17 1928 if 10 I t &

Patented Sept. 1, i931 omen STATES ATEN'r ()FFICE LYLE e. CHASE, on PLAINFIELD, NEW JERSEY, .ASSIGNOR T YAR AL' -WABING COM- 1 PANY, OF PHILADELEHIA, PENNSYLVANIA, A

CORPORATION 0Y5 PENNSYLVANIA SPRAY NOZZLE OUTLET Application filed May 17,

My invention relates to spray nozzles adapted to spray a liquid.- I

The main purpose of my invention is to extend the nozzle throat or outlet passage along 5 the axis of the discharge so as to permit it to release the spray at a considerable distance from the body of the spray nozzle.

A further purpose is to spray within a chamber or passage from a nozzle body located outside the passage.

A. further purpose is to extend-a rotating hollow column of fluid from the means by which the rotation has been given to the fluid through an outlet opening and outlet passage 7 and finally discharge it circumferentiallyin the form of a spray, determining thecharacteristics of the spray by the size and character of the discharge outlet finally used.

A further purpose is to provide for progressive reduction and flattening of a stream of liquid about a spiral. path of radius and to transfer the rotating fiowproduced to a distance laterally through guiding walls, releasing it iinally in the form of a spray.

Further purposes will appear in the speci V Y lhis has varlous advantages.

fications and in the claims.

My invention relates bothto the proeesses involved and to apparatus by which the proc csses may be carried out. i

I have preferred to illustrate my invention by one main form only, with a variation, se-

lecting as my preferred form a spray nozzle which is practical. elticient and thoroughly "reliable, and which at the same time well illustrates the principles involved.

Figure 1 is a fragmentary side elevation partly sectioned, showing one application of my invention.

Figure 2 is an enlarged'section of a portion .of Figured; I i

Figure 3 is a plan view showing the spray nozzle with its extension seen inFigures 1.

and 2. i

Figure 4; is a sectionuponline 4- of Figure 3. I

Figure 5 is a 'fragmentary'side elevation showing a variation of the structure as compared-with the other figures.

decreasing 1928. Serial No. 278,483.

In the drawings similar numerals indicate like parts Describing in illustration, and not in limitation, and referring to the drawings:

Various nozzles have been proposed by '5 which a stream of water from a supply pipe isgiven rotation within a chamber about a path of reducing cross-section and is then discharged laterally from a nozzle opening and is sprayed through a short discharge tube. The entire device has normally been termed a spray nozzle, notwithstanding that the actual discharge outlet is very short and does not receive the liquid until the stream has been given its converging whirl preparatory to '6 actual discharge.

My invention is intended to make it possible to utilize such a spray nozzle to spray at a considerable distance from the so-called spray nozzle, as, for example, by adischarge tube discharging within a passage or compartment, while the spiralling device normally called the spray nozzle is located outside of it. To distinguish between thetwo parts they will here be referred to as the discharge tube and spray nozzle respectively.

The most im- 'portant advantage is that it leaves the passage or co'mpartment free'from obstruction by the body of the spray nozzle. At the same 30 time it makes the spray nozzle available for inspection, cleaning, repairs and replacement by disconnection from the tube without removal-of the discharge tube from the passage or' compartment.

I have illustrated one use of this kind in Figures land 2 where the tube is inserted 'within a return bend 6 from a coke oven 7 so:that ammonia liquor with some tar in it, for example,may besprayed into the by product'gas coming from the oven and passing to the hydraulic gas mainl8 to increase the B. t. uls of the gas.

The spray nozzle discharge tube- 9 can, of course be inserted at any point or" in any direction, from the side, bottom or top. Insertion from the top has been shown for the reason that it is not necessary in that case to have the outlet project as-far into the passage as would be needed to secure. the same 100 extent of contact of the liquid with the byproduct gas it the insertion were from the bottom or side.

The discharge tube 9 is a long-throated involute nozzle which was not invented by .me but is illustrated by me becauseit gives a give a strong whirling movement as it is discharged from the nozzle into the extension pipe or tube.

In Figures 3 and l are seen a fluid supply pipe 10.connected with a spiralling chamber 11, by a long approach 12, in which. the crosssection is changed from a circular section at 13 to a rectangular section at 14, and in which the rectangular fluid stream delivered to the chamber 11 is spiralled within itself to give a progressively increasing speed of travel about a progressively smaller path and to discharge'laterally from an opening in the interior at 15. Instead of'allowing the water to discharge directly from a rim about the opening as in the original nozzle, I extend the throat 16 of the nozzle to any reasonable distance required by means of the terminal discharge tube 17. The point of discharge may thus be located at a considerable distance from the point at which the fluid is spiralled. This permits me to utilize the discharge, for example, within a container, notwithstanding that the spiralling chamber 11 is wholly outside of the container where it is readily accessible and where it is free from any undesirable conditions, such as a. high temperature, at which the final discharge takes place.

My invention secures results in proportion to the eiiectiveness of the preliminary spiralling of the nozzle, and for this reason has been illustrated with the excellent involute nozzle shown, which was invented by Wil- "liam llfKlein. However, the invention is capable of giving good resultseven with relatively inferior spirallingnozzles, giving a spray whichis not quite as good as that secured by the Klein nozzle, butwhich is sufiiciently effective for many classes of work.

It is not necessary to have thedischarge end 18 extend actually within the container and 'I have shown the discharge tube 9 as threaded at 19 so that it can be screwed into a fitting 20 which corresponds in taper to i thetaper of an inlet opening 21, The fitting is held to place against this taper by bolts 22 fastened through flanges 23;

Where it is desirable to spread the spray more than would be the case with the discharge from a plain pipe end, such as that shown in Figure 4, and particularly where the discharge tube is to extend upwardly instead of downwardly, I purpose using adistribution outlet 24 having a progressively reduced approach 25 and a reduced opening 26 surrounded by a counterbore 27. The counterbore is used to protect the opening from mechanical injury. The outlet is screwed into the interior of the pipe at 28.

This gives a very much broader spray than can be secured from the plain pipe.

In view of my invention and disclosure variations and modifications to meet individual whim or particular need will doubtless become evident to others skilled in the art, to obtain part or all of the benefits of my invention without copying the structure shown, and I, therefore, claim all such in so far as they fall within the reasonable spirit and scope of my invention.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. A spray nozzle having an inlet, a chamber to which the inlet is tangent and an outlet opening smaller in cross-section than the chamber in combination with a pipe in line with the outlet opening and of substantially the same internal diameter as the outlet opening extending the discharge laterally of the nozzle to a distance many times greater than the lateral height of the chamber and there discharging as a spray.

2. A spray nozzle having an inlet, a chamber to which the inlet is substantially tangent and about which liquid is caused to flow circumferentially in planes perpendicular to the height of the chamber and a guiding tube much smaller in cross-section than the crosssection of the chamber and extending parallel with the height of the chamber to a distance many times greater than the height of the chamber.

3. An enclosure within which liquid is to be sprayed,aspray nozzle above the enclosure, having a chamber from which it delivers a spiralled stream ofwater and a pipe connection between the chamber and the enclosure smaller in cross-section thanthe chamber and terminating in an outlet smaller in cross-section than the pipe from which the spiralled stream is sprayed.

4. A' spray nozzle having an inlet, a chamber to which the inlet is substantially tangent and an outlet'of considerably smaller crosssection than the cross-section of the inlet, a tube receiving the spiralled discharge from? said outlet and conveying it to a distance from the discharged nozzle and a wall through which the tube passes to discharge as a spray beyopd the wall from the position of the spray nozz e.

5. A spray nozzle having an inlet, a chamber to which the inlet is substantially tangent and an outlet of considerably smaller crosssection than the cross-section of the inlet, a tube receiving the spiralled discharge from said outlet and conveying it downwardly to a distance from the discharge nozzle and a discharge outlet from said tube of smaller diameter than the tube and tapered interiorly about the discharge opening.

6. Walls forming a compartment adapted to contain a gas, a spray nozzle outside of the compartment having a single inlet and a single outlet and comprising a chamber of generally involute contour having an inlet substantialy tangential to the involute and an outlet extending laterally along the central axis of the involute so that liquid entering at the inlet is guided to Whirl with respect to the involute axis, circumferentially of the outlet, and a substantially straight guiding tube from the outlet passing through a Wall of the compartment for transmitting the whirling discharge into the compartment as spray.

LYLE G. CHASE. 

